Apparatus and process for forming a laid fibrous web
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 19, 1987
Grant Date -
N/A
app pub date -
Dec 10, 1985
filing date -
Dec 10, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Apparatus and process for forming a laid fibrous article includes a foraminous forming surface for depositing thereon of fibers under the influence of a pressure differential imposed on the surface, wherein the improvement comprises the provision of a concavely contoured portion of the forming surface to yield a non-stepwise gradation in basis weight of the laid fibrous article. The concavely contoured surface portion is bounded by walls defining angles of from about 45.degree. to 68.degree., whereby the laid fibrous article is readily removable from the forming surface, which may comprise the cylindrical surface of a rotating drum.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully